RDC Hair Serum provided coats the hair, offering gloss and humidity protection. This serum with components that moisturize the scalp and stimulate blood flow to the scalp can help to improve the condition of the scalp dramatically. This is very effective, naturally made, and safe to apply. It cannot repair the damage, but it can protect hair from the environment and aid in moisture retention. This serum is very effective as well as economical to use.